Finding the Fourth Proportional to 328,178.40, 492,267.60 and 202,207.20
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Solution
The fourth proportional to 328,178.40, 492,267.60 and 202,207.20 is: 303,310.80
Step by Step Solution
- Step 1: Write the proportion equation
328,178.40 : 492,267.60 = 202,207.20 : x - Step 2: Convert to fraction form
328,178.40/492,267.60 = 202,207.20/x - Step 3: Cross multiply
328,178.40x = 492,267.60 × 202,207.20 - Step 4: Simplify right side
328,178.40x = 99,540,053,046.72 - Step 5: Solve for x
x = 99,540,053,046.72/328,178.40 - Step 6: Final answer
x = 303,310.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.